Winding-machine.



G. W. FUSTER.

WINDING MACHINE.

APPLICATIONHLED oc. i9, 1914.

Patented June 5, 1917.

4 SHEETS-SHEET l.

G. W. FOSTER.

WINDING MACHINE.

APPLICATION FILED ocT. I9, 1914.

Patented June 5, 1917.

4 SHEETS-SHEET 2.

G. W. FOSTER.

WINDING MACHINE.

APPLICATION min ocr. 19. w14.

Patented June 5, 19W.

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G. W. FOSTER.

WINDING MACHINE.

APPLICATION FILED OCT. I9, 1914.

Patented 'June 1917.

4 SHEETS-SHEET 4.

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GEORGE FOSTER, OF BOSTON, MASSACHUSETTS.

wrnnme-Macnmn.

Spccication of Letters Patent.

Patented .lune 5, 19M.

Application led October 19, 1914. Serial No. 867,324.

To all whom it may concern:

Be it lrnown that I, GEORGE W. Fos'rnn, of Boston, in the county of- Suiiolk and State of Massachusetts, a citizen of the United States, have invented a'new and useful improvement in Winding-Machines, of which the followin is a full, clear, and exact description, re erence being had to the accompanying drawings, forming a part of this speci cation in explaining its nature.

rllhe present invention relates to winding machines of that type in which the cop is rotated from contact with a drive roll, and especially to a quick-traverse winding machine, so-called, or that in which the thread guide is rapidly reciprocated.

In the operation of winding machines of the above type the threads are laid obliquely upon the cop, the successive coils of thread4 being laid each beyond the one last laid, the character of the wind following the mechanical laws governing all winding machines, viz: the character of the wind will always depend upon the speed relation between the cop and thread guide. ln other words, it the ratio between the rotations of the cop and the reciprocations of the thread guide is such that the thread guide at the extremity of each traverse is exactly over the point from which the previous traverse started, no successive layers of the coils of thread will be obtained, but the coils will tend to pile or lie one above the other. lli", however, the speed relation be modified either by gain or loss of the one element with relation to the other, then the piling will be obviated and cach coil of thread will be laid alongside that last laid, the distance separating the coils of thread depending upon the amount of relative change in speed between the respective elements.

According to the operations of machines in which the cop is driven by frictional contact with the surface of a drive roll, the speed of the cop varies inversely as its diameter. The diameter of the cop gradually increases by the thread wound upon it and consequently relative change in speed is obtained between the cop and the thread guide which is for the most part suliicient to eEect v a proper lay of the thread. At intervals during the wind, however, the relative speed of the cop and thread guide are such as to result in a slight piling of the thread which with the coarser threads or yarns is a negligible factor, but with the finer or softer vloe corrected by yarns is of more consequence and needs to a further change of the speed relation tween the cop and thread guide. Obviously such changes may be effected in many ways, but l have invented a method which is quite novel and yet can readily be attached to machines now in use and which has many advantages.

For purposes of illustration I have shown an embodiment of my invention as applied. to that type of double-bank winding machine described in Letters Patent of the United States No. 813,372, granted to me February 20, 1906, only those parts of the machine being shown which are necessary to a proper understanding of my present invention and the mode of application thereof to the machine.

In the drawings- Figure 1 is an end elevation of the machine.

`Fig. 2 is a side elevation of a portion thereof.

Fig. 3 is a side elevation of certain working parts of the machine.

Fig. 4L shows both in section and elevation certain details of the machine to which special reference will hereinafter be made.

Referring to the drawings z- The frame or body of the machine comprises a bed l having supporting standards -2 at either end thereof.

Mounted upon the bed 1 of the. machine are the winding mechanisms of which a double bank are ordinarily employed oppositely arrangedin pairs. Ot these winding mechanisms but a single pair is shown (see Fig. 2) inasmuch as this is sufcient to illustrate the present invention.

As shown each of the winding mechanisms comprises a substantially cone-shaped drive roll 3, a substantially coneshaped bearing spindle 4: or one adapted to receive a cop shaped substantially like the 'rustum of a cone, and a thread guide The spindle is arranged to coperate with the drive roll to be driven by it by surface contact and the thread guide coperates with these parts for applying the thread in the usual manner. rlfhe cop (not shown) carried by the spindle is of the type commonly employed and which is shaped substantially like t-he frustum ot a cone.

Each of the drive rolls 3 is mounted upon a shaft 6 journaled to turn in spaced bearings 7 mounted upon the bed or frame of the machine. 'There is also permitted to the shaft 6 for urposes which will later be explained, a limited longitudinal movement Within' the bearings 7, a like longitudiy t pulley having considerable lateral play or such as will .allow of the shaft 6 and drive roll carried by it having such longitudinal movement as will be suicient to admit of the operations hereinafter to be explained.

Theshaft 6 and drive roll carried by it vare operated in any suitable manner. Ac-

cording to the construction shown the shafts 6 and drive rolls 3 of each oppositely arranged pair of winding mechanisms are driven by a single endless belt 10 which passes around the respective pulleys 9 and thence downwardly in two loops, one passing around a pulley 11 arranged upon a main drive shaft 12 which is journaled to turn in the end supporting standards 2 of the frame and the' other loop around an idler pulley 13 adjustably mountedv upon a Stringer 14 of the frame substantially a's described in my aforesaid patent. v

The spindle 4 is mounted to have the usual freedom of motion or upward swing with relation to the drive roll and for this purpose any suitable means of support may be employed. According to the construction shown each spindle is carried by a spring pressed frame 16 pivoted to a stud 17 on a standard 18 fixed to the bed of the machine (see Fig. 2) substantially as' referred to in my aforesaid patent and other patents cited therein.

The thread guides are reciprocable in the usual manner and may be reciprocated by any suitable-means. According to the construction shown each thread guide is reciprocable within'a guide bar 20 fixed to the frame or bed of the machine. Each thread guide is reciprocated from oil'I a rock shaft 21 by an arm 22 lixed to such shaft and pivoted link or rod 23. There are two rock shafts 21 parallelly 4arranged to rock in bearings 24 set on the bed of the machine. The rock shafts are actuated from oi the main driving shaft by a mechanical movement substantially as referred to in my {Letters Patent of the United-States, Nos. 7 66,878 of August 9, 1904, 789,601 of May 9, 1905, and. 789,602 of May 9, 1905, respectively and brieiy, as follows:

The respective rock shafts are driven by crank motion from off the sides of the respective gears 25 and 26 by connecting rods 27. These rods are jointed to wrist pins 28 on levers 29 pivoted respectively to the gears 25 and 26 by pins 30. Each of the evers 29 has in it a slot receiving a crank pin 31. These crank pins are carried respectively by ,shafts 32, 33, of which the shaft 32 turns within the hub 34 of the gear 25 and the shaft 33 within the hub 35 of the gear 26. The hubs 34 and 35 are journaled to turn within the end 2 of the frame. The shaft 32 bears a gear 36; the shaft 33 a ear 37. The gears 36 and 37 are in mesh w1th one another. Arranged upon the main driving shaft 12 is a gear 38v which meshes with a gear 39 mounted upon a hub or shaft 40 journaled to turn within the end 2 of the frame. Arranged also upon the shaft 40 are gears 41 and 42 respectively, of which the gear 41 meshes with the gear 25 and the gear 42 with the gear 37. With the parts thus combined the gear 25 will be driven directly from the main driving shaft and will impart its motion to the gear 26 and thereby both gears 25 and 26 ,turn in reverse directions. Simultaneously with this operation the gear 42 will impart its motion to the gear 37 which in turn will drive the gear 36 in reverse direction with the elfect that the shaft 32 will be turned reversely to the gear 25 and the shaft 35 reversely to the gear 26, with the ultimate guides as referred to in my aforesaid patents.

Referring now more especially to the improvement comprising the present invention, attention has already been directed to the fact that the shafts 6 and drive lrolls carried by these shafts are each permitted` to have a limited longitudinal movement or play with relation to the cop bearing spindle. This adaptability is availed of for changing the speed of each spindle with relation to its thread fguide in accordance with the purposes o my invention as follows:

Arranged back of each of the shafts 6 to have engagement therewith for imparting a forward longitudinal thrust or movement thereto is a vibratory arm 45 mounted upon a rock shaft 46. Where the winding mechanisms-are arranged in pairs opposite one another as shown in Fig. 1, the vibratory arms 45 extend between the adjacent ends of the shafts 6 of respective winding mechanisms, the one armas it is vibrated successively engaging the ends of each sha-ft. The rock shaft 46 extends longitudinally beneath thebed of themachine parallel with the main' driving shaft and is journaled to turn within'the end supporting standards 2 of the neaeaaa frame. 'Ihe rock shaftis thus extended inorder that any number of vibratory arms 45 may be attached thereto for engaging the shafts of a series of winding mechanisms where such are employed. From the points of their attachment to the rock shaft the arms 45 extend upwardly through the bed of the machine which is slotted to admit of the play of the arms. The rock shaft 46 is actuated from off the main driving shaft during the operation of the machine as follows.

Secured to the main shaft at a point justinwardly removed from one end of the frame is a gear 47. rIhis gear has operative engagement with a gear 48 mounted upon a shaft 49 extending at substantially right angles to the rock shaft 46 and 4journaled to turn within bearings 50 suitably ailired to the end standard 2 of the frame. Fixed to the shaft 49 is a cam 52 around which is placed a cam strap 53. To this strap is secured a link 54 which pivotally connects with an arm 55 extending laterally from the rock shaft at right angles thereto. y

'l`he operation is as follows:

As the main shaft 12 is rotated the drive roll of each winding mechanism will be turned to drive its spindle and the thread guide will be reciprocated in the usual manner. Simultaneously with these operations the motion of the main shaft 12 will be 'transmitted through the gears 47, 48, cam 52, and strap 53 to impart an endwise reciprocatory motion to the rod 54 and thereby rock the shaft 46 and vibrate the arm 45 in reverse directions. As the arm 45 moves forward against the end of one or the other of the shafts 6 bearing the drive rolls it will operate to move this shaft and the drive roll thereon longitudinally and outwardly with relation to its spindle. The resulting ed'ect is that the spindle will be rotated at an increased rate of speed in its relation to the speed of the thread guide whichA remains constant, thereby changing the lay of the thread. Such relative increase of speed continues until the drive roll returns to its initial position. 'Ihe return of the drive roll need not necessarily be effected by any positive means inasmuch as the thrust of the spindle against the drive roll will tend to return it to its initial position upon the withdrawal of the vibratory arm 45. I prefer, however, as shown, to make provision whereby the belt 10 may assistin returning the drive roll or the drive rolls of each pair of spinning mechanisms to their initial positions after the outer movement thereof as aforesaid.

It will be observed by reference to Fig. 1 that the pulleys 11, 13, are arranged upon shafts lying within a vertical plane extending through a point midway between the centers of the pulleys 9, 9, when occupying their initial or normal positions; also, that the shafts upon which the pulleys 11, 13 are arranged are at right angles to the shafts 6 bearing the'pulleys 9, 9, and that the diameters of the pulleys 11, 13 are not greater and preferably less than the distance between the centers of the pulleys 9, 9, when occupying their normal positionsl as aforesaid. The effect of this arrangement is that the belt l0 becomes slightly stretched or dis-- torted as the shafts 6 and pulleys 9 thereon are moved outwardly by the vibratory arm and the natural tendency of the belt is to return the pulleys and shafts to their initial position and this it assists in doing after the withdrawal of the vibratory arm from one or the other of the shafts G.

In regard to the timing of the apparatus, in practice the arm 45 is Vibrated from time to time so slowly that each drive roll is moved outwardly and allowed to return to its initial position before being again actuated. Other timing may be practised as occasion may require, but in any event I prefer to make the timing of the longitudinal movement of the drive roll quite slow.

What I claim as my invention is:

1. In a winding machine, the combination of a rotatable spindle, a cone-shaped drive roll, means for rotating said drive roll to operate said spindle, a thread guide, means for reciprocating said thread guide, and automatic means for changing longitudinally in reverse direction the position of said drive roll with relation to said spindle during the operation of the machine.

2. In a winding machine, the combination of a rotatable spindle adapted to hold a substantially cone-shaped cop, a drive roll for driving said spindle by surface contact with its cop, means for rotating said drive roll, a thread guide, means for reciprocating said thread guide, and automatic means for changing longitudinally in reverse directions the relative positions of said drive roll and cop carried by the spindle during the operation of the machine.

3. In a winding machine, the combination of a rotatable spindle adapted to hold a cop, a substantially cone-shaped drive roll, means for rotating said drive roll to operate said spindle by surface contact with its cop, a thread guide, means for reciprocating said thread guide, and means whereby the relative longitudinal positions of said drive roll and cop are changed automatically in reverse directions from time to time during the operation of the machine.

4. In a winding machine, the combination of a rotatable spindle adapted to hold a substantially cone-shaped cop, a drive roll for operating said spindle by surface contact with its cop, means for rotating said drive roll, a thread guide, means for reciprocating said thread guide, and means whereby the guide, means for reciprocating said thread .relative longitudinal positions of said drive roll and cop are changed automatically in reverse directions from time to time during the operation of the machine.

5. In a'windin machine, the combination of a rotatable spindle adapted to receive a substantially cone-shaped cop, a. substan-y tially cone-shaped drive roll for dr1v 1ngsa1d spindle by surface contact with 1ts cop, means for rotating said drive roll, .a thread guide, and automatic means whereby a -forward and reverse longitudinal movement are imparted to said drive roll from time to time during-the operation of the machine.

6. In a winding machine, the combination of a rotatable spindle, a conical drive roll, means for mounting said roll whereby it may have a forward and reverse longitudinal movement with relation to said spindle, a thread guide, means for rotating said drive, roll and for reciprocating said thread guide, and automatic means wh reby a forward and reverse longitudina movement are imparted to said drive roll at intervals during the operation of the' machine.

7 ln a winding machine, the combination of a rotatable spindle, a substantially coneshaped drive roll, a shaft bearin said roll,

means'for mounting said shaft w ereby said drive roll may have longitudinal forward and reverse movement with relation to said spindle, means for rotating said shaft and drive roll thereon to operate said spindle, a thread guide, means for reciprocating said thread guide, a vibratory arm having engagement with the end of said shaftvfor moving said shaft and drive roll thereon longitudinally at intervals bythe vibration thereof, means for mounting said arm, and automatic means for vibrating said arm during the operation of the machine.

8. In a winding machine, the combination with a main driving shaft of a rotatable spindle, a cone-shaped drive roll mounted to have a reverse longitudinal movement with relation to said spindle, means for mounting said drive roll, means for rotating said -with al nain driving drive roll from ed said shaft to operate said spindle, a thread guide, means for reciprodrive roll with relation to said spindle dur-5 5 ing the operation of the machine.

9. ln a winding machine, the combination shaft of a rotatable spindle', a cone-shaped drive roll, a shaft bearing said r0ll,means for mounting said shaft whereby said driveroll may have a reverse longitudinal movement with relation to said spindle, means for rotating said shaft and drive roll carried thereby from ofi' said main shaft to operate said spindle, a thread guide, means for reciprocating said thread guide ,from olf said main shaft, a vibratory arm mounted to have engagement with said shaft for imparting a longitudinal movement to it and said drive roll by the vibration of said arm, means for mounting said arm, and automatic means whereby said arm is vibrated from olf said main shaft during the operation of the machine.

l0. In a windingV machine, a rotatable spindle for holding a cop shaped as the frustum of a cone, a cone-shaped drive roll for driving saidspindle by surface contact with its cop., means `for rotatingy said drive roll at a constant speed, and means for moving said drive roll longitudinally automatically from time to time as the winding progresses.

l1. ln a winding machine, the combination comprising a rotatable spindle for holding a substantially cone-shaped cop, a coneshaped drive roll for driving said spindle by surface contact with its cop, means for rotating said drive roll, and automatic means whereby the relative positions of said drive roll and cop are changed longitudinally in reverse directions from time to time as the winding progresses.

GERGE W. FOSTER. Witnesses:

JOHN E. R. HAYES, M. E. Fmmn'rr. 

